Window-lifting device



June 26, 1923.

H. A. MYERS WINDOW LIFTING DEVICE Filed Sept. 18, 1922 2 Sheets-Sheet 1 YENTUR my June 26, 1923.

H. A. MYERS WINDOW LIFTING DEVICE Filed Sent. 18

1922 2 Sheets-Sheet 2 illustrate the structure.

Parent ism 2a, 1a.

Bonner A. MYERS, or 'rotniio,- OHIO.

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Application filed September 18, 1922. Seria1N 588,838

To all whom it may concern:

Be it known that I, Huenrrr A. MYERS, a citizen of the United States, and a resident of Toledo, in the county of Lucas and 5 State of Ohio, have made an Invention Appertaining to a Window-Lifting Device; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

' My invention has for its object 'to'provide, particularly, an eilicient automobile window lifting device that may be made ata very low cost of production. The invention broadly has for its object to provide a combination of elements whereby linear movements may be imparted by rotary movements. The linear movements may be performed in the elements themselves, or the elements may operate on exterior objects to groduce linear movements in'such objects. roadly, the invention may be utilized for the accomplishment of a great variety of purposes, and may be contained ina great variety of devices.

To illustrate a practical application of the invention I have selected a window lifter. whereby rotary movements will cause the operation of certain elements to raise the window. The window raising device selected for purposes of illustration is shown in the accompanying drawings and will be described hereinafter. I

Figure 1' of the drawings illustrates a front view of a door or window of an automobile. Fig. 2 is a sectional view taken on the line 2-2 indicated in Fig. 1. Fig. 3 is a side view of a device. Fig. 4 is an edge view of the device. Fig. 5 is an enlarged view of part of the device to more clearly Fig. 6 is a sectional view taken on the line 6-6 indicated in Fig. 5. I I

The window it is of a type commonly used in automobiles, and is shown mounted in the deer 2. The window is provided with the usual sash 3., which in this art is usually in the form of a channel bar. The side edges of the window are located between pairs of strips l whereby the window may be guided in its up-and-down movement's. A bracket 5 is connected to the window sash, and a pin 6 is connected to the bracket 5. .The window raising device operates upon the pin 6 to raise and lower the ..window, the pin and bracket being merely a convenient interconnecting means between the window and the raising device. Any other suitable means may be used.

The window raising device is provided with a plurality of movable members 7. The members 7 are preferably, in the particular construction selected for purposes of illustration, a pair of metallic strips hav- "ing engaging members for engaging the window or some part connected therewith. Broadly, the movable'members 7 may be provided with suitable engaging members either to produce motion in an exterior body, or to produce movements of the device embodying the invention relative to the exterior body. In the particular construction shown in the drawings each of the strips 7 is provided with a plurality of engaging teeth 8 that have a width, as measured from center to center of the teeth, dependent upon the ratio that it is desired to establish as between the force applied and the force that it is desired to exert in the movement of the member 7. The teeth from each other according to the thickness of the device that is to be engaged. The pin 6 that is connected to the window is provided with a plurality of rollers 9 upon which the movable membars 7 operate to raise and lower the window according to the direction of move ment of the member 7. The space between each tooth is substantially the same as that of the diameter of the rollers.

The movable members 7 produce'a continuous movement in the window as it is being raised and lowered, while a step-bystep movement is being produced in the members.

' The step-loy-step movement is produced by a suitable rotating member. Tn the particular construction shown it is produce by the crank 10. The crank 10 is connected by a suitable means to a shaft 11. The shaft 11 is connected by a suitable means to produce back-and-forth movements in the members 7 in a longitudinal direction and also in a lateral direction, or in a direction substanare separated tially transverse to the longitudinal move ments. This may be accomplished by came her 7 through which it extends. is connected to the disc 14 and to a crankmember 16. The pin 15 operates on the other member 7 to cause similar movements in the other member 7 but the direction of movements of the said other member 7 alternates with the direction of movements of the first mentioned member 7 by reason of the fact that the pins 13 and 15 are located on opposite sides of the axis of the shaft 11. If more than two members 7 are used in the construction the connection between them and the shaft 11 is extended in a similar way, that is, three or more discs are used and are interconnected by the corresponding number of pins similar to the pins 13 and 15, and the pins are preferably uniformly spaced about the axis of the shaft 11 that causes rotation thereof. If cams are used in place of the pins the longitudinal-and lateral movements of the members are defined according to the shape of the surfaces of the cams or the shape of the recesses or openings formed in the movable members 7 in which the cams'are located.

' slightly greater than,

desire to move the window, that is, to complished b The shaft 11 ma be supported in a, suitable bushing 17 t at is supported by the frame 18 of the automobile body or door', and the discs 12 and 14 provide a suitable spacing means as well as a surface bearing means for the members 7. The crank 10 may be connected to the shaft 11 by the screw bolt 19 that is threaded in or otherwise secured to the shaft 11, and the washers 20 may be-located between thehead of the bolt and the body orv frame of the automobile or door to afford proper bearing surfaces for the purpose of rotation of the shaft 11 in the manner well known in the art.

Since it is desired to move the object over a considerable distance and relative to the members 7, the members 7 have a length sufficient to cause the extended movement, of the object. In other words, the length of the members 7 is substantially the same, or the distance that it is pletely open or completely close the window. On the other hand, if the members 7 are made of considerable length means is provided for causin the same movements in every part of each of the members 7 and so that 'as the object is moved by the members 7 the same uniform motion will be produced in the object, whatever its position may be in its path of movement. This is accomlocating a second connecting structure etween the members 7 similar to that heretofore described and wherein the same movements will be produced at a point more or less remote from the first structure. This will cause the same movement throughout the length of each of the members 7 and produce the uniform movement of the object to be moved.

The crank member 16 is connected by means of .a link 21 to a crank member 22. The crank member 22 is connected to a pin 23 that extends through one of the members 7 and the disc 24. The disc 24 is connected by means of a pin 25 to a disc 26. The pin 25 extends throlwh the other member 7. The

frame of the door, as by the nuts 28. Thepins 23 and 25, and the discs 24 and 26, are similar in construction to the pins 13 and 15, and the discs 12 and 14. The pins 23 and 25 are located on opposite sides of the axis of the pin 28 and a line extending through the centers of the pins 23 and 25 is parallel to the line extending through the centers of the pins 13 and 15. Also the line extending between the crank pin of the crank 22 andthe axis of the pin 27 is parallel to the line extending through the axis of the crank pin of the crank 16 and the axis of the shaft 11, whereby all parts of each of the members 7 make the same 'rotative. movements upon rotation of the crank 10.

ward and then upwards or downwards, and.

then back, according to the direction of rotation of the connecting member. The pin 6 is so located as to be engaged by the teeth of the members 7, the rollers 9 located on the pin operating to reduce the friction as between the pin 6 and the members 7. In this way the consecutix e teeth of one member alternately engage one of the rollers 9 with the engagement of the other of the rollers 9 by the teeth of the other member 7. \Vhile, for example, one of the members 7 is lifting the window the other member is being carried down and brought forward so that one of its teeth will engage one of the rollers as the first member completes its upward movement. The other member 7 carries the window up another step while-the first member 7 is withdrawing and being depressed. The same operations are performed in the downward direction when the window is to be lowered, the members alternately engaging and lowering the window a short distance as the crank l is t ble mechanism, such as a dog,

' of engaging, elements The distance of each step-by-step upward or downward movement induced by the device upon a single rotation of the crank depends upon the distance between the centers of the pins 13 and 15 in the particular construction shown. The lifting or moving force of the members 7, aside from the friction between the parts, is the inverse ratio of the radial distances of the ins from the axis of the shaft 11 to the ength of the crank 10., and thus a considerable weight may be lifted or a considerable resistance may be overcome. by the device, dependent, of course, upon this mechanicalratio.

Since the pins 13, 15, 23 and 25 are 10- cated on opposite sides of their axes of rotation they may be positioned in a vertical line or vertical lines, and if the pressure of the" object is in a vertical direction the pins will be on what may be termed.dead centers with reference to their axes of rotation, and consequently the object will be securely held in its position notwithstanding the pressure exerted through it or by its weight. Thus the crank 11 may be rotated to a position such as to position the pins in their dead centers and the window will be held in position notwithstanding its weight or notwithstanding any jarring that it may be subjected to. Thus the device provides a convenient means for locking the window in position. If desired, however, any suitamay be used for locking the window in any desired position in the manner well known in the art.

The device may be mounted, if desired, on the plate 30. This affords a ready means of attachment of the device to the supporting structure.

I claim: I

1. In a window lifter, a plurality of members,each of the members having a plurality of engaging elements, means for operating the members to engage and move the window, the elements engaging the window singly and in sequence, and the members by means of their elements successively engaging the window after each engagement of an element of another of the members.

2. In a window lifter, a plurality of members, each of the members having a plurality for engaging the window, a pair of rotative members for supporting the first named members at points eccentric t0 the axis of rotation of the rotative members and in radii of each of said rotative members that are disposed at substantially equal angles from each other.

3. In a window lifter, a plurality of members, each of the members having a plurality of engaging elements, a pair of rotative members for supporting the first named members at points eccentric to the axis of rotation of the rotative members and in radii of each of said members that are disposed at substantially equal angles from-each other,

bers, each of the members having a plurality of engaging elements, a pair of rotative members for supporting the first named members at points eccentric to the axis of rotation of the rotative members and in radii of each of said members that are disposed at substantially equal angles from each other,

a pin connected to the window successively engaged by the first named members through their associated engaging elements,

5. In a window lifter, a plurality of mem bers, each of the members having a plurality of engaging elements, a .pair of rotative members for supporting the first named members at points eccentric to the axis of rotation of the rotative members and in radii of each of said members that are disposed atsubstantially equal angles from each other, a depending bracket connected to the lower end of the window. a pin connected to the lower end of the bracket successively engaged by the first named members through their associated engaging elements.

6. In a window lifter, a plurality of members, each of the members having a plurality of engaging elements, a pair of rotative members for supporting the first named members at points eccentric to the axis of rotation of the rotative members and in radii of each of said members that are disposed at substantially equal angles from each other, a depending bracket connected to the lower end of the window, a pin connected to the lower end of the bracket, rollers located on the pin successively engaged by the first named members through their associated engagin elements.

7. In a win ow lifter, a frame for guiding the window, a plurality of bars having engaging surfaces and located in the lower part of the frame, a, pair of rotative members connected to and at oints eccentric to the axis of rotation of the rotative members, a pin connected to the window and successively engaged by the members after each engagement of an engaging surface associated with another of the bars.

8. In a window lifter, a frame for guiding the window, a plurality of bars having engaging surfaces and located in the lower part of the frame, a pair of rotative mem bers connected to the bars near their ends and at points eccentric to the axis of rotation of the rotative members, a depending bracket connected to the lower end of the window, a pin connected to the bracket to raise the window above the upper ends of the bars and successively engaged by the the bars near their ends v30 rotative members members after each engagement of an engaging surface associated with another of the bars. 4

9. In a window lifter, ,a frame for guid- 5 ing the window, a pair of bars having ongaging surfaces and located in the .lower part of the frame, a pair of rotative members 'connected'to the bars near their ends and at points eccentric to the axis of rotation of the rotative members, the points of each member at which the bars are connectedbeing located in a line extending through the axis of rotation of the rotative member and on opposite sides of the axis, a pin connected to the Window and alternately engaged by the bars after each engagement of the engaging surfaceof the other bar.

' 10. In an automobile window lifter, a frame for guiding the window, a pair of bars having engaging surfaces and located in the lower part of the frame, a pair of r0- tative members connected to the bars near their ends and at points eccentriq to the axis of rotation of-the rotative members, the points of each member at which the bars are connected being located in a line passing through the axis of rotation of the rotative member and on opposite sides of the axis, a supporting bar for pivotally supportingthe and the first named bars the frame, a ing to the lower end of and vsecured to bracket connected the window, a pin connected to the bracket, rollers located on the pin and alternately engagedby the bars after each engagement 8 an engaging surface of the other of the ars.

11, In an automobile -window lifter, a frame for guiding the window, a pair'of bars having recesses, the upper. and lower surfaces of the recesses formlng engaging surfaces and located in the lower part of the frame and in close proximity to the gravity line of the window, a pair of rotative-members connected to the bars near their ends and at points eccentric to the axisof the rotation of the rotative members, the points of each member at which the bars are connected being located in a line passing through the axis of rotation 'ofthe rotative member and on opposite sides of the axis, a supporting bar for pivotally supporting the rotative members and the first named bars and secured to the frame, a depending bracket connected to window, a pinconnected to the bracket, rollers located on the pin and substantially fitting the recesses and alternately engaged by the bars after each engagement of an engaging surface of the other bar.

In testimony whereof, I have hereunto signed my name to this specification.

HUBERT A. MYERS.

the lower end of the 

